Regulator for needle-valves.



110,721,447. E M EAT NTED EEE. 24, 1903;

' H. 0. H0WELLs,*JE. & E. A. JOHNSON.

REGULATOR FOR NEEDLE VALVES.

APPLICATION EILE'D 001,21, 1901.

no MODEL.

I MHIW WITNESSES i -]N- ENTOIRS',

4 1 Attorney YHE NbRRIS FEPERS (20.. FHOIO-LITHO WASHINGTON D C UNITED STATES PATENT OFFICE.

HENRY O. HOWELLS, JR., AND FRANK A. JOHNSON, OF NEW YORK, N. Y., AS- SIGNORS, BY MESNE ASSIGNMENTS, TO WVILLIAM E. WATKINS, TRUSTEE, OF MONTCLAIR, NEW JERSEY.

REGULATOR FOR NEEDLE-VALVES.'

SPECIFICATION forming part of Letters Patent No. 721,447, dated February 24, 1 903.

Application filed October 21,1901. Serial No. 79,443. (No model.)

To all whom it may concern: the asbestos packing is expanded outwardly,

Be it known that we, HENRY C. HOWELLS, completely fitting the stuffing-box and abso- J r., and FRANK A. JOHNSON, of New York, lutely preventing the escape of any oil. The in the county of New York and State of New packing is also forced snugly against the nee- 5 York, have invented certain new and useful dle-valve and by its contact or friction there- 55 Improvements in Regulators for Needlewith prevents the needle from rotating ex- Valves; and we do hereby declare the followcept under the application of an abnormal ing to be a full, clear, and exact description power. The needle passes through the nut 8 of the invention, such as will'enable others and loosely through the needle-regulator 9.

IO skilled in the art to which it appertains to This regulator 9 is provided with an enlarged 60 make and use the same. hollow body 10, open at its sides, as shown,

Our invention relates to an improvement in within which rests the block .11, also having I regulators for needle-valves employed in conan opening for the passage of the needlenection with hydrocarbon-Vaporizers; and it valve. The opening in the body 10 of the nee- I5 consists in a needle-valve, means for holding dle-regulator 9 is preferably circular in form, 65 the needle against rotation, and a hand-wheel and the block 11 may be either spherical in swiveled on the needle and adapted when to shape or be rectangular with rounded ends, so tated to move the needle longitudinally. as not to interfere in the slightest with the Our invention further consists in the parts free rotation of the regulator 9. This block is and combinations of parts, as will be more clamped to the needle byset-screw 12. Hence 70 fully explained, and pointed out in the claims. it will be seen that by rotating the regulator In the accompanying drawings, Figure 1 is the latter, due to its screw-threaded stem 13 a view in elevation of avaporizer, showing engaging the female threads in the nut 8,

our improvement applied thereto; and Fig. 2 rises and carries with it the needle-valve, the

is a view in longitudinal section of same. latter being prevented from rotating by the 75 In the Vaporizers now in use on hydrocarfrictional contact withthe packing. With bon incandescent lamps the needle-valve is this construction the regulator is simply secured at its outer end to a hand-wheel and swiveled on the needle and bearing against rotates or turns with the wheel. This rotary the block 11, clamped to the needle, causes motion of the needle inxcontact with the nozthe latter to move longitudinally as the wheel 80 zle or with the carbon deposited in the nozzle is turned.

soon tends to twist'and destroy or distort the It is evident that many slight changes very delicate needle-point on the valve; and might be resorted to in the relative arrangethe object of our invention is to so construct ment of parts herein shown and described the actuating mechanism of the valve that without departing from the spirit and scope 85 the latter has simply a longitudinal moveof our invention. Hence we would have it ment imparted to it by the rotary motion of understood that we do not wish .to limit ourthe hand-wheel. selves to the exact construction shown and 1 represents the vaporizer, provided with described; but,

40 the nozzle 2 and the plug 2. This plug is Having fully described our invention, what 0 provided with a bore 3 for the passage of the we claim as new, and desire to secure by Letneedle-valve 4 and with a port 5 for the pasters Patent, issage of the oil. The outer end of the bore 1. The combination with a plug carryinga for the needle-valve terminates in an enlarged packing and a screw-nut for holding the packrecess 6 for the reception of asbestos packing ing in place and provided with an internally- 5 7, which latter is retained in place by the threaded recess, of a valve-regulator threadscrew-nut 8. The opposing faces of the nut ed to engage in the recess of the nut and havand the base of the recess 6 are made conical ing a recess, a block swiveled in such recess and slightly flattened at the apices of the and conforming in contour to the shape of cones, so that by screwing the nut 8 inwardly the recess in the regulator, and the needle 10o passing through the packing, nut, regulator and block and adj ustably secured to the block.

2. In a vaporizer the combination with a plug having a stuffing-box therein, and a screw-nut closing the outer end of said box and provided with an internally-threaded recess, of a valve-regulator threaded to engage the recess of the nut, a device carried by and swiveled to said valve-regulator and a needle- Valve passing through the packing, nut, and valve -regulator and ad justably secured to said swiveled device.

3. In a vaporizer, the combination with a plug carrying suitable packing and a screwnut for holding said packing in place, of a valve-regulating device having a threaded stem engaging the female threads of the screw-nut, and a needle-valve longitudinally adjustable in said valve-regulating device and swiveled therein, substantially as set forth. t

In testimony whereof We have signed this specification in the presence of two subscribing witnesses.

HENRY O. I'IOWELLS., JR. FRANK A. JOHNSON.

Witnesses:

PHILIP FRANK,

GEO. SMITH. 

